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Re: [PATCH 3/5] pci: Use pci_sbdf_t in pci_device_detect()
- To: dmukhin@xxxxxxxx
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 20 May 2026 08:37:34 +0200
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- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Teddy Astie <teddy.astie@xxxxxxxxxx>
- Delivery-date: Wed, 20 May 2026 06:37:39 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 20.05.2026 05:21, dmukhin@xxxxxxxx wrote:
> On Mon, May 18, 2026 at 05:21:27PM +0200, Teddy Astie wrote:
>> @@ -1510,25 +1508,24 @@ void __init ehci_dbgp_init(void)
>> }
>> else if ( strncmp(opt_dbgp + 4, "@pci", 4) == 0 )
>> {
>> - unsigned int bus, slot, func;
>> -
>> - e = parse_pci(opt_dbgp + 8, NULL, &bus, &slot, &func);
>> + pci_sbdf_t sbdf = PCI_SBDF(0, 0, 0, 0);
>> +
>> + e = parse_pci_sbdf(opt_dbgp + 8, &sbdf);
>
> The original logic was ignoring PCI segment,
Not quite - it was demanding it to be either absent or 0.
> now the full PCI address is allowed.
This behavioral change (if indeed intended) definitely needs mentioning /
justifying in the description.
Jan
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